NF C03-504:2005 Standard data element types with associated classification sheme for electric components - Part 4 : IEC reference collection of standard data element types and component classes.
2005NF C03-504:2005 Standard data element types with associated classification sheme for electric components - Part 4 : IEC reference collection of standard data element types and component classes.
1997NF C03-504:1997 Standard data element types with associated classification scheme for electric components. Part 4 : IEC reference collection of standard data element types, component classes and terms.